<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<%@ taglib uri = "http://java.sun.com/jsp/jstl/core" prefix = "c" %>
<%@ taglib uri = "http://java.sun.com/jsp/jstl/xml" prefix = "x" %>
<%@ taglib uri = "http://java.sun.com/jsp/jstl/fmt" prefix = "f" %>
<%@ taglib uri = "http://java.sun.com/jsp/jstl/sql" prefix = "sql" %>
<%@ taglib uri = "http://java.sun.com/jsp/jstl/functions" prefix = "fn" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>add title here</title>
</head>
<body>
  <form method="post" action="update">  
    id:<input name="id" value="${user.id}" readonly/><br/> 
    username:<input name="username" value="${user.userName}"/><br/>  
    password:<input name="password" value="${user.password}"/><br/>  
    email:<input name="age" value="${user.age}"/><br/>  
    <input type="submit" />  
  </form>
</body>
</html>